1. Enron ranked 16 in the Fortune Global 500 in 2000. It is the largest natural gas buyer and seller in the United States and a leading energy wholesale market maker. Since 200 1 filed for bankruptcy, Enron has been trying to restructure in order to recover the losses of creditors as much as possible. Shortly after the company's collapse, the company's innovative core energy trading department was acquired by Merrill Lynch. The rescue plan of Dynegy, Enron's competitor in the same industry, once brought Enron the last chance of life, but the negotiations finally failed because Dynegy sought control of North Natural Gas Company, Enron's controlling shareholder.

2.MF Global is one of the influential financial derivatives and commission merchant in London and even the global market. It has more than 70 members of futures and commodity exchanges around the world, and is also one of the 22 first-class wholesalers of US Treasury bonds designated by the US government. In the Hong Kong market, it has two membership licenses for the futures exchange and the commercial exchange. On October 20111October 3 10, MF Global filed for bankruptcy protection in new york because it failed to find a buyer in time.

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